A simple, reliable means for measuring the permeability to moisture of paint,
varnish and lacquer film.
The ring and flange of these cups are precision machined to give exposure to
exactly 10cm² or 25cm²
Ratio of exposed area to total film area is therefore 0.4:1
Complies with BS3900 - G9, ISO 7783/1, ASTM D ... more
Simple and rapid test method to determine opacity in terms of hiding and spreading powers. Used both for production and quality control purposes. The Cryptometer is called for in product specifications and test methods which accept the limitation that the wet film and not the dry coating has been measured.